# -*- coding: utf-8 -*-
"""
Created on Tue Sep  5 19:55:02 2017

@author: Administrator
"""

import numpy as np
import matplotlib.pyplot as plt

x=np.linspace(-10, 10, 80)
y=x**3
plt.plot(x, y, linestyle='--', color='#FF0000', marker="<")
plt.show()